Struct syntax::source_map::MultiSpan

pub struct MultiSpan {
    primary_spans: Vec<Span>,
    span_labels: Vec<(Span, String)>,
}

🔬 This is a nightly-only experimental API. (rustc_private)

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A collection of spans. Spans have two orthogonal attributes:

• they can be primary spans. In this case they are the locus of the error, and would be rendered with ^^^.
• they can have a label. In this case, the label is written next to the mark in the snippet when we render.

Fields

primary_spans: Vec<Span>

🔬 This is a nightly-only experimental API. (rustc_private)

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span_labels: Vec<(Span, String)>

🔬 This is a nightly-only experimental API. (rustc_private)

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Methods

impl MultiSpan

pub fn new() -> MultiSpan

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pub fn from_span(primary_span: Span) -> MultiSpan

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pub fn from_spans(vec: Vec<Span>) -> MultiSpan

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pub fn push_span_label(&mut self, span: Span, label: String)

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pub fn primary_span(&self) -> Option<Span>

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Selects the first primary span (if any)

Important traits for &'a [u8]

impl<'a> Read for &'a [u8]impl<'a> Write for &'a mut [u8]

pub fn primary_spans(&self) -> &[Span]

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Returns all primary spans.

pub fn replace(&mut self, before: Span, after: Span) -> bool

🔬 This is a nightly-only experimental API. (rustc_private)

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Replaces all occurrences of one Span with another. Used to move Spans in areas that don't display well (like std macros). Returns true if replacements occurred.

Important traits for Vec<u8>

impl Write for Vec<u8>

pub fn span_labels(&self) -> Vec<SpanLabel>

🔬 This is a nightly-only experimental API. (rustc_private)

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Returns the strings to highlight. We always ensure that there is an entry for each of the primary spans -- for each primary span P, if there is at least one label with span P, we return those labels (marked as primary). But otherwise we return SpanLabel instances with empty labels.

Trait Implementations

impl Eq for MultiSpan

fn assert_receiver_is_total_eq(&self)

impl PartialEq<MultiSpan> for MultiSpan

fn eq(&self, other: &MultiSpan) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &MultiSpan) -> bool

This method tests for !=.

impl Encodable for MultiSpan

fn encode<__S>(&self, s: &mut __S) -> Result<(), <__S as Encoder>::Error> where     __S: Encoder,

🔬 This is a nightly-only experimental API. (rustc_private)

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impl Debug for MultiSpan

fn fmt(&self, f: &mut Formatter) -> Result<(), Error>

Formats the value using the given formatter.

impl Decodable for MultiSpan

fn decode<__D>(d: &mut __D) -> Result<MultiSpan, <__D as Decoder>::Error> where     __D: Decoder,

🔬 This is a nightly-only experimental API. (rustc_private)

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impl Hash for MultiSpan

fn hash<__H>(&self, state: &mut __H) where     __H: Hasher,

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where     H: Hasher,

Feeds a slice of this type into the given [Hasher].

impl From<Span> for MultiSpan

fn from(span: Span) -> MultiSpan

Performs the conversion.

impl From<Vec<Span>> for MultiSpan

fn from(spans: Vec<Span>) -> MultiSpan

Performs the conversion.

impl Clone for MultiSpan

fn clone(&self) -> MultiSpan

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.